Revert of More regular Platform implementations in unit tests (reland.)

third_party/WebKit/Source/platform/testing/TestingPlatformSupport.cpp

-/*
- * Copyright (C) 2014 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-
-#include "platform/testing/TestingPlatformSupport.h"
-
-namespace blink {
-
-TestingDiscardableMemory::TestingDiscardableMemory(size_t size) : m_data(size), m_isLocked(true)
-{
-}
-
-TestingDiscardableMemory::~TestingDiscardableMemory()
-{
-}
-
-bool TestingDiscardableMemory::lock()
-{
-    ASSERT(!m_isLocked);
-    m_isLocked = true;
-    return false;
-}
-
-void* TestingDiscardableMemory::data()
-{
-    ASSERT(m_isLocked);
-    return m_data.data();
-}
-
-void TestingDiscardableMemory::unlock()
-{
-    ASSERT(m_isLocked);
-    m_isLocked = false;
-    // Force eviction to catch clients not correctly checking the return value of lock().
-    memset(m_data.data(), 0, m_data.size());
-}
-
-WebMemoryAllocatorDump* TestingDiscardableMemory::createMemoryAllocatorDump(const WebString& name, WebProcessMemoryDump* dump) const
-{
-    ASSERT_NOT_REACHED();
-    return nullptr;
-}
-
-TestingPlatformSupport::TestingPlatformSupport()
-    : TestingPlatformSupport(TestingPlatformSupport::Config())
-{
-}
-
-TestingPlatformSupport::TestingPlatformSupport(const Config& config)
-    : m_config(config)
-    , m_oldPlatform(Platform::current())
-{
-    Platform::initialize(this);
-}
-
-TestingPlatformSupport::~TestingPlatformSupport()
-{
-    Platform::initialize(m_oldPlatform);
-}
-
-WebDiscardableMemory* TestingPlatformSupport::allocateAndLockDiscardableMemory(size_t bytes)
-{
-    return !m_config.hasDiscardableMemorySupport ? 0 : new TestingDiscardableMemory(bytes);
-}
-
-void TestingPlatformSupport::cryptographicallyRandomValues(unsigned char* buffer, size_t length)
-{
-    RELEASE_ASSERT_NOT_REACHED();
-}
-
-const unsigned char* TestingPlatformSupport::getTraceCategoryEnabledFlag(const char* categoryName)
-{
-    static const unsigned char tracingIsDisabled = 0;
-    return &tracingIsDisabled;
-}
-
-WebString TestingPlatformSupport::defaultLocale()
-{
-    return WebString::fromUTF8("en-US");
-}
-
-WebCompositorSupport* TestingPlatformSupport::compositorSupport()
-{
-    return m_config.compositorSupport;
-}
-
-WebThread* TestingPlatformSupport::currentThread()
-{
-    return m_oldPlatform ? m_oldPlatform->currentThread() : nullptr;
-}
-
-} // namespace blink